kernel build error when upgrading Irix version 6.5.x - SGI

This is a discussion on kernel build error when upgrading Irix version 6.5.x - SGI ; I'm trying to upgrade an O2 from 6.5.18 to 6.5.19 (eventually I want
to move it to the latest revision, but I need 6.5.19 for a particular
application for the moment). When I reboot the system after upgrading,
I get ...

kernel build error when upgrading Irix version 6.5.x

I'm trying to upgrade an O2 from 6.5.18 to 6.5.19 (eventually I want
to move it to the latest revision, but I need 6.5.19 for a particular
application for the moment). When I reboot the system after upgrading,
I get an error message that the kernel can't be rebuilt, and to reboot
and run /etc/autoconfig -v to try to manually build the kernel. So I
reboot, and I run autoconfig, and I get the same error that I get when
the system tries to build the kernel, which is below. I have *no* idea
how to proceed. Any suggestions?

Re: kernel build error when upgrading Irix version 6.5.x

acl.a isn't getting compiled into the kernel for some reason. Do you
have an acl.a in /var/sysgen/boot, and is there a line like USE: acl in
/var/sysgen/system/irix.sm? It also might be worth checking if there's
a patch for this.
Michael

Possible solutions:
- understand why your aclstubs.a seems to be out of sync with
udf and then solve the problem (ie. find the right version of
aclstubs.a)
- uninstall eoe.sw.udf if you don't care about reading DVDs
- install eoe.sw.acl
> It also might be worth checking if there's a patch for this.

There is no patch for this as it is not a problem that you would
normally be able to get.

Actually, now that I think about it, UDF support for ACLs wasn't added
until 6.5.22, so it seems to me that if you're going from 6.5.18 to
6.5.19 then something is completely screwed as you're somehow grabbing
eoe.sw.udf (which contains udf.a) from 6.5.22!